All 17 states participating in tax-free shopping days will exempt payment of tax on school supplies, but only eight states will extend that exemption to purchases of technology products such as computers, printers, software, and other accessories.

The rules vary in each participating state, and most place a limit on how much you can spend, so be sure to read up on the details before committing to a big purchase. Some highlights of this year’s tax holiday include tablets qualifying for tax exemption in North Carolina, computer hardware qualifying in New Mexico, and no price limit on tech purchases in South Carolina.

Is your state on the list? Check the chart below to see whether you are eligible, and what categories are covered.